I got a battery operated opener that cuts the whole lid off the can. You just put the gizmo on the top, push the button to engage the cutter, and let it go to work. The blade doesn't even get into the food at the top of the can, so you don't need to wash it. Maybe a quick wipe at most. And the lid can then be laid back on top of the can when you put it back in the refrigerator (it won't fall in).